One of my PCs (WinXP SP2) hangs upon booting at the "Applying Computer Settings" box. I have tried replacing the svchost, removed the wbem\repository folder, changed netbois from default to enable over IP. I was getting an event error:

The BrSplService service failed to start due to the following error:

The system cannot find the file specified

But I turned that service off.

I aslo get an event log error that the Server service hung on starting, and of course all the dependant services fail.

What really kills me is each time I try to make an adjustment and reboot, it takes 10 minutes (give or take) before I can get back on.